<template>
  <div class="category">
    <Breadcrumb></Breadcrumb>
    <div class="wrapper">
      <div class="title">产品类目管理</div>
      <div class="tree">
        <!-- 一级按钮 -->
        <el-button type="warning" style="margin-bottom:20px;" @click="addCategory">新增一级导航类目</el-button>
        <!-- tree内容结构 -->
        <el-tree :data="data" show-checkbox node-key="id" default-expand-all :expand-on-click-node="false" :render-content="renderContent" :props='defaultProps'>
        </el-tree>
      </div>
    </div>
    <!-- 弹框 -->
    <Dialog :info="info" ref="child" :type=" type" @upDataView="itemCategory()"></Dialog>

  </div>
</template>

<script>
import Dialog from './Dialog.vue';
export default {
  components: { Dialog },
  data() {
    return {
      info: '标题',
      type: 1,//1新增 2修改 3新增一级分类
      data: [{
        id: 1,
        name: '一级 1',
        children: [{
          id: 4,
          name: '二级 1-1',
        }]
      }, {
        id: 2,
        name: '一级 2',
      }],
      defaultProps: {
        label: "name"
      }
    }
  },
  created() {
    this.itemCategory()
  },

  methods: {
    //新增一级分类
    addCategory(){
      this.$refs.child.dialogVisible = true;//1
      this.info = {
        title: `新增一级分类`,//2
      };
      this.type = 3;//新增一级分类
      this.$refs.child.input = '';
    },
    //新增   1显示弹框   2传递动态title  3type表示1新增 2修改
    append(data) {
      console.log('新增---', data, this.$refs.child);
      this.$refs.child.dialogVisible = true;//1
      this.info = {
        title: `新增【${data.name}】的名称`,//2
        cid: data.cid
      };
      this.type = 1;//新增
      this.$refs.child.input = '';
    },
    //修改  1显示弹框   2传递动态title  3type表示1新增 2修改 4把名称给输入框
    update(node, data) {
      console.log('修改----', data);
      this.$refs.child.dialogVisible = true;
      this.info = {
        title: `修改【${data.name}】的名称`,//2
        id: data.id
      };
      this.type = 2;//修改
      this.$refs.child.input = data.name;//4

    },
    //删除类目 1显示弹框提示 2 确定删除，请求借口 3 更新视图
    remove(node, data) {
      this.$confirm('此操作将删除该类目, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
       //执行删除接口
       this.$api.deleteContentCategoryById({id:data.id})
       .then(res=>{
        console.log('删除类目',res.data);
        if (res.data.status == 200) {
        this.$message({
          message: '恭喜你,删除成功',
          type: 'success'
        });
        this.itemCategory()
      }
       })

      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        });
      });
    },
    //render-content	树节点的内容区的渲染 Function	Function(h, { node, data, store }
    renderContent(h, { node, data, store }) {
      return (
        <span class="custom-tree-node">
          <span class='name'>{node.label}</span>
          {
            node.level == 1 ? <span>
              <el-button class='mini' on-click={() => this.append(data)} icon="el-icon-plus">新增</el-button>
              <el-button class='mini' on-click={() => this.update(node, data)} icon="el-icon-edit">修改</el-button>
              <el-button class='mini' type="danger" on-click={() => this.remove(node, data)} icon="el-icon-delete">删除</el-button>
            </span> : <span>
              <el-button class='mini' on-click={() => this.update(node, data)} icon="el-icon-edit">修改</el-button>
              <el-button class='mini' type="danger" on-click={() => this.remove(node, data)} icon="el-icon-delete">删除</el-button>
            </span>
          }
        </span>
      );
    },
    //请求tree 数据
    async itemCategory() {
      let res = await this.$api.itemCategory();
      {/* console.log(res.data.result); */ }
      //获取一级目录
      let data = res.data.result;
      let oneArr = [], otherArr = [];
      data.forEach(ele => {
        if (ele.type == 1) {
          {/* let obj={}
        obj.id=ele.id
        obj.label=ele.name
        oneArr.push(obj) */}
          ele.children = [];
          oneArr.push(ele)
        } else {
          otherArr.push(ele)
        }
      })
      console.log(oneArr, otherArr)
      //继续遍历数组，把other添加到One的childern
      oneArr.forEach(item => {
        otherArr.forEach(ele => {
          if (ele.type == item.cid) {
            item.children.push(ele)
          };
        })
      });
      this.data = oneArr;
    }
  }
};
</script>

<style lang="less" scoped>
.custom-tree-node {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  padding-right: 8px;
}

.category {
  margin: 10px;
}

.wrapper {
  padding: 10px;
  margin-top: 10px;
  background: #fff;

  .title {
    background: #f6f6f6;
    height: 50px;
    line-height: 50px;
    font-weight: bold;
    padding-left: 10px;
  }

  .tree {
    margin: 10px;

    /deep/ .mini {
      padding: 4px 10px;
      font-size: 14px;
    }

    /deep/ .el-tree-node__content {
      margin-bottom: 10px;
    }
  }

  /deep/ .name {
    width: 300px;
    display: inline-block;
  }
}
</style>